Abstract:
PURPOSE:We propose an magnetic resonance imaging (MRI)-based quantitative morphovolumetric approach to the posterior cranial fossa (PCF) and craniocervical junction (CCJ) changes in achondroplastic patients investigating possible associations with ventriculomegaly and medullary compression. METHODS:We analyzed MRI of 13 achondroplastic children not treated by surgery. 3D FSPGR T1-weighted images were used to analyze (1) PCF synchondroses; (2) PCF volume (PCFV), PCF brain volume (PCFBV), PCFV/PCFBV ratio, cerebellar volume, cerebrospinal fluid (CSF) spaces volume, and IV ventricle volume; (3) PCF (clivus, supraocciput, exocciput lengths, tentorial angle) and CCJ (AP and LL diameters of foramen magnum (FM)) morphometry; (4) measurements of FM and jugular foramina (JF) areas; and (5) supratentorial ventricular volume. RESULTS:All patients showed synostosis of spheno-occipital synchondroses, eight showed synostosis of intra-occipital synchondroses, nine showed CCJ impingement on the cervical cord but only three had cervical myelopathy. Compared to controls, clivus and exocciput lengths, LL and AP diameters of FM, FM area and JF area were significantly reduced, supraocciput length, tentorial angle, PCFV, PCFBV, cerebellar volume, supratentorial ventricular system volume were significantly increased. A correlation was found between clivus length and supratentorial ventricular volume, premature closure of intra-occipital synchondroses and FM area while a trend was found between FM area and supraocciput length. CONCLUSION:Our analysis demonstrates a relationship between the shortening of the clivus and the ventriculomegaly. On the other hand the premature closure of PCF synchondroses, the shape, and the growth direction of supraocciput bone contribute to reduce the FM area, causing in some patients medullary compression.
journal_name
Neuroradiologyjournal_title
Neuroradiologyauthors
Calandrelli R,Panfili M,D'Apolito G,Zampino G,Pedicelli A,Pilato F,Colosimo Cdoi
10.1007/s00234-017-1887-ysubject
Has Abstractpub_date
2017-10-01 00:00:00pages
1031-1041issue
10eissn
0028-3940issn
1432-1920pii
10.1007/s00234-017-1887-yjournal_volume
59pub_type
杂志文章相关文献
NEURORADIOLOGY文献大全abstract::CT is the most effective examination technique for studying the evolution of ischemic attacks, but if performed within the first 3 weeks it does not allow prognosis of possible evolution towards necrosis. CBF measurement and vasoreactivity tests under Althesin do allow this prognosis. Thirty patients whose evolution w...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00395259
更新日期:1978-01-01 00:00:00
abstract::Myelographic flexion-extension studies were performed in four groups of 10 patients each, with (A) normal myelogram; (B) bilateral nerve root compression at L4-L5; (C) unilateral nerve root compression at L4-L5 and (D) nerve root compression at L5-S1. The aim of the investigation was to assess the role of spinal steno...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00342411
更新日期:1984-01-01 00:00:00
abstract:INTRODUCTION:The purpose of this study was to evaluate the feasibility of intravoxel incoherent motion (IVIM) imaging and its value in differentiating the histologic grade among human gliomas. METHODS:The IVIM model generated parametric images for apparent diffusion coefficient ADC, slow diffusion coefficient D (or D ...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s00234-013-1229-7
更新日期:2013-10-01 00:00:00
abstract:INTRODUCTION:Limbic encephalitis (LE) associated with voltage-gated potassium channel-complex antibodies (VGKC-LE) is frequently non-paraneoplastic and associated with marked improvement following corticosteroid therapy. Mesial temporal lobe abnormalities are present in around 80 % of patients. If associated or precede...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s00234-015-1581-x
更新日期:2015-12-01 00:00:00
abstract::With faster CT scanners, asymmetric/heterogeneous enhancement (ASHE) of the internal jugular veins (IJVs) is frequently encountered in the absence of pathology. We investigated the frequency, side, pattern and significance of ASHE in 200 patients with various head and neck lesions. Non-ionic contrast medium (300 mgI/m...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s002340050412
更新日期:1997-04-01 00:00:00
abstract::Vacuolar myelopathy (VM) and tract pallor are poorly understood spinal tract abnormalities in patients with the acquired immunodeficiency syndrome (AIDS). We studied the ability of magnetic resonance imaging (MRI) to detect these changes in spinal cord specimens postmortem and whether criteria could be formulated whic...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00588630
更新日期:1995-02-01 00:00:00
abstract::We reviewed all patients over a 3-year period with documented aneurysms of the posterior cerebral circulation, and re-examined the angiograms of 103 patients. There were 9 cases of fenestration of the basilar artery, all associated with aneurysms of the basilar artery. In 6, the aneurysm arose at the site of the fenes...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s002340050389
更新日期:1997-03-01 00:00:00
abstract::MRI findings are reported from two patients with Cockayne syndrome (CS) type I, aged 11 and 37 years. Changes were compatible with diffuse white matter hypomyelination. Basal ganglia calcification was present in both, marked cerebellar atrophy in the older patient. MRI may support the diagnosis of CS in the appropriat...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00344359
更新日期:1989-01-01 00:00:00
abstract::Fibromuscular dysplasia (FMD) is an arterial lesion of unknown origin which may sometimes affect intracranial arteries. In recent years a few rare cases, mostly involving younger people, have been described. The present case concerns a child of 8 years in whom the finding of hemiplegia led to a diagnosis of intracrani...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00344830
更新日期:1979-08-15 00:00:00
abstract:INTRODUCTION:Indices of collateral flow deficit derived from MR perfusion imaging that are predictive of MCA-M1 recanalization after intravenous thrombolysis have been recently reported. Our objective was to test the performance of such MRI-derived collateral flow indices for prediction of recanalization after endovasc...
journal_title:Neuroradiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00234-013-1310-2
更新日期:2014-02-01 00:00:00
abstract::We report two boys diagnosed as having herpangina and hand-foot-mouth disease complicated by monoplegia during the outbreak enterovirus infection in Taiwan in 1998. Enterovirus 71 was identified in the stool and throat swab; neither polio nor Coxsackie viruses was identified. MRI showed unilateral lesions in the anter...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s002340050030
更新日期:2000-02-01 00:00:00
abstract::The side effects associated with the use of Iotrol were determined in 100 patients and compared with metrizamide and iopamidol in two double-blind studies. The relevance of the distribution of the contrast medium in the CSF space to the occurrence of headache is discussed. The low persistence of iotrol in the brain pa...
journal_title:Neuroradiology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00339568
更新日期:1985-01-01 00:00:00
abstract::L5 radicular pain related to an epidural gas-containing pseudocyst is described in a 62-year-old female. Transient resolution of radicular pain was observed after CT-guided gas aspiration. Recurrent radicular pain led to surgical treatment; after operation the radicular pain disappeared. ...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00340142
更新日期:1990-01-01 00:00:00
abstract:PURPOSE:This study aimed to retrospectively analyze a series of patients with complex posterior circulation stenosis who underwent stent-assisted angioplasty to evaluate the feasibility of the procedure and summarize the experience with regard to complications. METHODS:A total of 16 consecutive patients with 27 comple...
journal_title:Neuroradiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00234-009-0503-1
更新日期:2009-05-01 00:00:00
abstract::Germinomas arising within the sella turcica are extremely rare. The association of intrasellar and a pineal region tumours is even more unusual. We report a 30-year-old man with germinomas in the sellar and pineal region. ...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s002340050521
更新日期:1997-12-01 00:00:00
abstract::Our purpose was to investigate nonhaemorrhagic infarcts with a short T1 in the cerebellum and basal ganglia. We carried out repeat MRI on 12 patients with infarcts in the cerebellum or basal ganglia with a short T1. Cerebellar cortical lesions showed high signal on T1-weighted spin-echo images beginning at 2 weeks, wh...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s002349900242
更新日期:2000-07-01 00:00:00
abstract::Drug-resistant epilepsy is an important clinical challenge, both diagnostically and therapeutically. More and more surgical options are being considered, but precise presurgical assessment is necessary. We prospectively studied eight patients with drug-resistant epilepsy, who underwent clinical examination, single pho...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s00234-002-0785-z
更新日期:2002-06-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to assess regional cerebral blood flow (rCBV) in areas of CT hypoattenuation appearing in the postoperative period in patients treated for aneurysmal subarachnoid hemorrhage (SAH) using xenon-enhanced CT scanning (Xe-CT). METHODS:We analyzed 15 patients (5 male and 10 female; mea...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s00234-006-0111-2
更新日期:2006-09-01 00:00:00
abstract::Magnetic resonance angiography (MRA) hs inherent artifacts due to variation in velocity and direction of flowing blood in the carotid bulb and regions of stenosis. We examined the efficiency of dual 3-inch surface coils to delineate carotid artery flow better. Carotid MRA was performed on ten healthy volunteers and si...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00607262
更新日期:1996-07-01 00:00:00
abstract::Eight cases of vertebral chordoma, exclusive of the sacrococcygeus, are presented. The conventional radiographic signs in descending order of importance in differential diagnosis are: destruction of multiple adjacent vertebral bodies; a paravertebral or precervical soft tissue mass; osteosclerosis, seen mainly at the ...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00333738
更新日期:1975-09-15 00:00:00
abstract::Choroid plexus lipomas (CPL) are known to be associated with pericallosal lipomas (lipomas of the corpus callosum--LCC). Twenty-six cases have previously been reported. Approximately half of these lipomas are connected via the choroidal fissure (LCC-CPL); this connection is almost always bilateral. We present an unusu...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00596500
更新日期:1992-01-01 00:00:00
abstract::Our aim was to determine whether MRI reliably shows pathology in patients with active otosclerosis (otospongiosis). We studied five patients with clinical and audiometric signs of this disorder and positive findings on high-resolution CT and tympanocochlear scintigraphy. Contrast enhancement of otospongiotic lesions w...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s002340050445
更新日期:1997-06-01 00:00:00
abstract::Pure sensory stroke has not previously been reported with thalamic haemorrhage and had indeed been considered to exclude cerebral haemorrhage. We describe a case of thalamic haemorrhage causing a pure sensory stroke and propose that we should bear in mind the possibility of haemorrhage in such cases. ...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00596336
更新日期:1992-01-01 00:00:00
abstract::Tuberous sclerosis complex (TSC) is an autosomal dominant condition clinically presenting with heterogenous clinical features. Multiple neuroradiological manifestations have been associated with TSC, such as tubers, radial migration lines, subependymal nodules, subependymal giant cell astrocytomas, and cyst-like lesio...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s00234-021-02647-5
更新日期:2021-01-22 00:00:00
abstract:INTRODUCTION:Endovascular treatment of intracranial aneurysms has been an effective treatment option. In this paper, we report our experience with the Silk stent (SS) for endovascular treatment of complex intracranial aneurysms and present periprocedural events, immediate results, delayed complications, and imaging and...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s00234-012-1051-7
更新日期:2012-12-01 00:00:00
abstract::Aneurysm configuration and neck morphology are important factors in the decision for cerebral aneurysm therapy, i.e., clipping versus coiling. The aim of our study was to create various aneurysm configurations in a predictable and reproducible way in an animal model. In our recently proposed endovascular approach to p...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s00234-004-1218-y
更新日期:2004-07-01 00:00:00
abstract:INTRODUCTION:Shared rotating control acquisition can shorten the imaging time of territorial arterial spin labeling (tASL) by 33% compared with the normal control acquisition scheme but potentially results in an inaccurate estimate of vascular territories due to imperfect magnetization transfer compensation. Our purpos...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s00234-011-0919-2
更新日期:2012-01-01 00:00:00
abstract:PURPOSE:To investigate the gross white matter abnormalities in the structural brain MR imaging as well as white matter microstructural alterations using tract-based spatial statistics (TBSS) analysis of diffusion tensor imaging (DTI) in both affected and contralateral cerebral hemispheres of children with hemimegalence...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s00234-020-02491-z
更新日期:2020-11-01 00:00:00
abstract::The authors report on five cases of septic sinus thrombosis occurring as early complications and/or long-term complications of infections in the head and neck region. The necessity for early diagnosis of this condition by high-resolution CT scanning is emphasized, as it provides a reliable diagnostic tool to evaluate ...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/BF00395618
更新日期:1988-01-01 00:00:00
abstract::I report a 30-year-old woman with congenital cerebral venous dysgenesis with absence of the internal cerebral and basal veins and most of the cortical veins. Unlike the more common bilateral picture, she had involvement only on the left side, which delayed presentation and gave relatively mild symptoms. The embryologi...
journal_title:Neuroradiology
pub_type: 杂志文章
doi:10.1007/s002340050010
更新日期:2000-01-01 00:00:00